Home / 147,788.15-203,874.57-87,329.54

Finding the Fourth Proportional to 147,788.15, 203,874.57 and 87,329.54

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Solution

The fourth proportional to 147,788.15, 203,874.57 and 87,329.54 is: 120,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,788.15 : 203,874.57 = 87,329.54 : x
  2. Step 2: Convert to fraction form
    147,788.15/203,874.57 = 87,329.54/x
  3. Step 3: Cross multiply
    147,788.15x = 203,874.57 × 87,329.54
  4. Step 4: Simplify right side
    147,788.15x = 17,804,272,925.48
  5. Step 5: Solve for x
    x = 17,804,272,925.48/147,788.15
  6. Step 6: Final answer
    x = 120,471.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.